RClamp0522PA RClamp0524PA Ultra Low Capacitance TVS Arrays PROTECTION PRODUCTS - RailClamp® Description PRELIMINARY Features RailClamp® TVS arrays are ultra low capacitance ESD protection devices designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients). The RClamp®0522PA and RClamp®0524PA have a typical capacitance of only 0.30pF between I/O pins. This allows it to be used on circuits operating in excess of 3GHz without signal attenuation. They may be used to meet the ESD immunity requirements of IEC 610004-2. The RClamp0522PA is designed to protect two lines, while the RClamp0524PA will protect four lines. The RClamp0522PA is in a 6-pin SLP1610P4 package. It measures 1.6 x 1.0 with a nominal height of 0.58mm. The RClamp0524PA is in a 10-pin SLP2510P8 package. It measures 2.5 x 1.0 with a nominal height of 0.58mm. The leads are spaced at a pitch of 0.5mm and are finished with lead-free NiPdAu. They are designed for easy PCB layout by allowing the traces to run straight through the device. The combination of small size, low capacitance, and high level of ESD protection makes them a flexible solution for applications such as HDMI, DisplayPortTM, MDDI, and eSATA interfaces. ESD protection for high-speed data lines to Mechanical Characteristics High Definition Multi-Media Interface (HDMI) Digital Visual Interface (DVI) DisplayPortTM Interface MDDI Ports PCI Express eSATA Interfaces Circuit Diagram - RClamp0524PA Pin 1 Pin 2 3, 4 Pin 2 Pin 4 Pin 5 3, 8 2-Line Protection Revision 3/8/2010 SLP1610P4 6-pin package (1.6 x 1.0 x 0.58mm) SLP2510P8 10-pin package (2.5 x 1.0 x 0.58mm) Pb-Free, Halogen Free, RoHS/WEEE Compliant Lead Pitch: 0.5mm Lead finish: NiPdAu Marking: Marking Code Packaging: Tape and Reel Applications Circuit Diagram - RClamp0522PA Pin 1 IEC 61000-4-2 (ESD) ±17kV (air), ±12kV (contact) IEC 61000-4-5 (Lightning) 5A (8/20μs) IEC 61000-4-4 (EFT) 40A (5/50ns) Package design optimized for high speed lines Flow-Through design Protects two or four I/O lines Low capacitance: 0.3pF typical (I/O to I/O) Low clamping voltage Low operating voltage: 5V Solid-state silicon-avalanche technology 4-Line Protection 1 www.semtech.com RClamp0522PA RClamp0524PA Ultra Low Capacitance TVS Arrays PROTECTION PRODUCTS - RailClamp® Pin Identification and Configuration PRELIMINARY RClamp0522P RClamp0524P 6 5 4 10 9 8 7 6 1 2 3 1 2 3 4 5 Pin Identification Pin Identification 1-2 Input Lines 1, 2, 4, 5 Input Lines 5-6 Output Lines (No Internal Connection) 6, 7, 9, 10 Output Lines (No Internal Connection) 3-4 Ground 3, 8 Ground SLP2510P8 Pin Configuration (Top View) SLP1610P4 Pin Configuration (Top View) Pin 1 Pin 2 Pin 1 3, 4 Pin 2 Pin 4 Pin 5 3, 8 Circuit Diagram Circuit Diagram Ordering Information Part Number Number of Lines Qty per Reel Reel Size RClamp0522PATCT 2 3000 7 Inch RClamp0524PATCT 4 3000 7 Inch RailClamp and RClamp are marks of Semtech Corporation. 2 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Absolute Maximum Rating Rating Symbol Value Units Peak Pulse Power (tp = 8/20μs) Ppk 150 Watts Peak Pulse Current (tp = 8/20μs) IPP 5 A ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) VESD +/- 17 +/- 12 kV TJ -55 to +125 °C TSTG -55 to +150 °C Operating Temperature Storage Temperature Electrical Characteristics (T=25oC) Parameter Symbol Conditions Reverse Stand-Off Voltage VRWM Any I/O pin to ground Reverse Breakdown Voltage V BR It = 1mA Any I/O pin to ground Reverse Leakage Current IR VRWM = 5V, T=25°C Any I/O pin to ground 1 μA Clamping Voltage VC IPP = 1A, tp = 8/20μs Any I/O pin to ground 15 V Junction Capacitance Cj VR = 0V, f = 1MHz Between I/O pins 0.4 pF Junction Capacitance Cj VR = 0V, f = 1MHz Any I/O pin to ground 0.8 pF © 2010 Semtech Corp. 3 Minimum Typical Maximum Units 5 V 6 V 0.30 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve 10 110 % of Rated Power or IPP Peak Pulse Power - PPP (kW) 100 1 0.1 90 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 0 1000 25 50 75 100 125 150 Ambient Temperature - TA (oC) Pulse Duration - tp (us) Pulse Waveform Clamping Voltage vs. Peak Pulse Current (Between any I/O and Ground) 110 Waveform Parameters: tr = 8µs td = 20µs 100 90 70 35 Clamping Voltage -VC (V) Percent of I PP 80 40 e-t 60 50 40 td = IPP/2 30 20 10 30 Line to Line 25 20 Line to Gnd 15 Waveform Parameters: tr = 8µs td = 20µs 10 5 0 0 5 10 15 20 25 0 30 0 1 2 Time (µs) 4 5 6 Insertion Loss S21 - I/O to GND Normalized Capacitance vs. Reverse Voltage CH1 S21 CJ(VR) / CJ(VR=0) 3 Peak Pulse Current - IPP (A) 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 LOG 6 dB / REF 0 dB 1: -0.086 dB 900 MHz 3 0 dB 1 2: -0.0336 dB 1.8 GHz 2 3: -0.126 dB 2.5 GHz -6 dB -12 dB -18 dB -24 dB -30 dB -36 dB f = 1 MHz -42 dB 0 1 2 3 Reverse Voltage - VR (V) 4 5 -48 dB 1 MHz START . 030 MHz © 2010 Semtech Corp. 4 10 MHz 100 MHz 3 1 GHz GHz STOP 3000. 000000 MHz www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Typical Characteristics (Con’t) Insertion Loss S21 - I/O to I/O CH1 S21 LOG 6 dB / REF 0 dB 1: -0.076 dB 900 MHz 3 0 dB 1 2: -0.062 dB 1.8 GHz 2 3: -0.1087 dB 2.5 GHz -6 dB -12 dB -18 dB -24 dB -30 dB -36 dB -42 dB -48 dB 1 MHz START . 030 MHz © 2010 Semtech Corp. 10 MHz 100 MHz 3 1 GHz GHz STOP 3000. 000000 MHz 5 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Applications Information Design Recommendations for HDMI Protection Adding external ESD protection to HDMI ports can be challenging. First, ESD protection devices have an inherent junction capacitance. Furthermore, adding even a small amount of capacitance will cause the impedance of the differential pair to drop. Second, large packages and land pattern requirements cause discontinuities that adversely affect signal integrity. The RClamp0524PA and RClamp0522PA are specifically designed for protection of high-speed interfaces such as HDMI. They present <0.4pF capacitance between the pairs while being rated to handle >±8kV ESD contact discharges (>±15kV air discharge) as outlined in IEC 61000-4-2. Each device is in a leadless SLP package that is less than 1.1mm wide. They are designed such that the traces flow straight through the device. The narrow package and flow-through design reduces discontinuities and minimizes impact on signal integrity. This becomes even more critical as signal speeds increase. HDMI Connector 12 11 10 1 GND GND 9 8 7 1 6 5 4 GND GND 3 2 1 Figure 1. Flow through Layout Using R Clam p052 4P A Clamp052 p0524P 4PA Pin Configuration Figure 1 is an example of how to route the high speed differential traces through the RClamp0524PA. The solid line represents the PCB trace. The PCB traces are used to connect the pin pairs for each line (pin 1 to pin 10, pin 2 to pin 9, pin 4 to pin 7, pin 5 to pin 6). For example, line 1 enters at pin 1 and exits at Pin 10 and the PCB trace connects pin 1 and 10 together. This is true for lines connected at pins 2, 4, and 5 also. Ground is connected at pins 3 and 8. One large ground pad should be used in lieu of two separate pads. The same layout rules apply for the RClamp0522PA. TDR Measurements for HDMI The combination of low capacitance, small package, and flow-through design means it is possible to use these devices to meet the HDMI impedance requirements of 100 Ohms ±15% without any PCB board modification. Figure 3 shows a typical impedance test result for a TDR risetime of 200ps using a Semtech evaluation board with 100 Ohm traces throughout. Measurements were taken using a TDR method as outlined in the HDMI Compliance Test Specification (CTS). In each © 2010 Semtech Corp. 6 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Applications Information case, the device meets the HDMI CTS requirement of 100 Ohm ±15% with plenty of margin. Figure 3 shows a typical HDMI 1.3 eye pattern at 1080p resolution. As shown there are no violations of the eye pattern with RClamp0524PA in the circuit. The RClamp0524PA may also be used to protect the remaining lines (I2C, CEC, and hot plug). Figure 4 shows the complete protection solution. Layout Guidelines for Optimum ESD Protection Good circuit board layout is critical not only for signal integrity, but also for effective suppression of ESD induced transients. For optimum ESD protection, the following guidelines are recommended: z Place the device as close to the connector as possible. This practice restricts ESD coupling into adjacent traces and reduces parasitic inductance. z The ESD transient return path to ground should be kept as short as possible. Whenever possible, use multiple micro vias connected directly from the device ground pad to the ground plane. z Avoid running critical signals near board edges. X-axis Y-axis 1.79 98.3 (nsec) (Ohm) Figure 2 - TDR Measurement with 200ps risetime using Semtech Evaluation Board Note: Measurements were taken on SLP HDMI EVAL Rev C Board that has 100Ω differential traces impedance throughout (No trace Compensation). Protecting MDDI Ports with RClamp0524P and RClamp0522P The small package size and low capacitance of the RClamp0522PA and RClamp0524PA make them ideal for high-speed lines in portable applications. One such application is the protection of MDDI ports in cellular phones. MDDI is a serial data interface operating at 480Mb/s per line pair. The lines are scalable for increased speed and display resolution. A MDDI port protection example is shown in Figure 5. The RClamp0524PA is used to protect two differential line pairs while an RClamp0522PA is used to protect the MDDI strobe lines. Note that devices are used on both the main board and LCD side of the MDDI port. Devices on the main board are needed to protect the MDDI controller in the Baseband processor and devices on the LCD board to protect MDDI controller in LCD module. A single line TVS such as the uClamp0501P is used to protect the MDDI power line. The protection devices should be placed close to the connector of each board. Traces are routed directly through each device, minimizing parasitic inductance. Connections to the ground plane should be made with multiple micro vias when possible. © 2010 Semtech Corp. Figure 3 - Typical HDMI 1.3 Eye Pattern (1080p) with RClamp0524PA 7 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Applications Information Data 2+ Data 2Data 1+ Data 1- To HDMI Graphics Chip Data 0+ Data 0-Clk+ Clk- RClamp0524PA(3(3 Each) RClamp0544T Each) CEC SCL SDA HP Detect 5VPower Gnd Figure 4. HDMI Protection MDDI_Data0+ MDDI_Data0Gnd Gnd MDDI_Data1+ MDDI Link Controller MDDI Link Controller MDDI_Data1RClamp0524P RClamp0524PA RClamp0524P RClamp0524PA MDDI_Stb+ MDDI_StbGnd Gnd RClamp0522PA RClamp0522P RClamp0522PA RClamp0522P Host Pwr Host Gnd HOST uClamp0501P uClamp0501P Figure 5. MDDI Port Protection © 2010 Semtech Corp. 8 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Applications Information Spice Model RClamp0522PA Spice Model R Clamp0522PA Spice Parameters © 2010 Semtech Corp. Parameter Unit D1 D2 D3 IS Amp 1E-20 1E-20 2E-12 BV Volt 100 100 8.2 VJ Volt 0.83 0.83 0.6 RS Ohm 1.5 0.6 0.2 IB V Amp 1E-3 1E-3 1E-3 CJO Farad 0.25E-12 0.25E-12 56E-12 TT sec 2.541E-9 2.541E-9 2.541E-9 M -- 0.01 0.01 0.23 N -- 1.1 1.1 1.1 EG eV 1.11 1.11 1.11 9 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Applications Information Spice Model RClamp0524PA Spice Model R Clamp0524PA Spice Parameters © 2010 Semtech Corp. Parameter Unit D1 D2 D3 IS Amp 1E-20 1E-20 2E-12 BV Volt 100 100 8.2 VJ Volt 0.83 0.83 0.6 RS Ohm 1.5 0.6 0.2 IB V Amp 1E-3 1E-3 1E-3 CJO Farad 0.25E-12 0.25E-12 56E-12 TT sec 2.541E-9 2.541E-9 2.541E-9 M -- 0.01 0.01 0.23 N -- 1.1 1.1 1.1 EG eV 1.11 1.11 1.11 10 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Outline Drawing - SO-8 Outline SLP1610P4 A D B DIM E PIN 1 INDICATOR (LASER MARK) A SEATING PLANE aaa C A2 b1xN bbb 1 .020 .023 .026 0.00 .001 .002 (.005) .006 .008 .010 .014 .016 .018 .059 .063 .067 .035 .039 .043 .020 BSC .039 BSC .012 .015 .017 4 .003 .004 0.50 0.58 0.65 0.00 0.03 0.05 (0.13) 0.15 0.20 0.25 0.35 0.40 0.45 1.50 1.60 1.70 0.90 1.00 1.10 0.50 BSC 1.00 BSC 0.30 0.38 0.43 4 0.08 0.10 C A1 bxN C A B bbb A A1 A2 b b1 D E e e1 L N aaa bbb DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX 2 C A B R0.125 E/2 LxN N 2X R0.075 3 PLACES e e1 D/2 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). Land Pattern - SLP1610P4 P1 P DIMENSIONS DIM C G P P1 X X1 Y Y1 Z Y Z (C) G (Y1) X X1 INCHES (.034) .007 .020 .039 .008 .016 .027 (.061) .061 MILLIMETERS (0.87) 0.19 0.50 1.00 0.20 0.40 0.68 (1.55) 1.55 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. © 2010 Semtech Corp. 11 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Outline Drawing - SO-8 Outline SLP2510P8 A D B DIM E PIN 1 INDICATOR (LASER MARK) A SEATING PLANE aaa C A2 b1xN bbb 1 E/2 C A1 R0.125 A A1 A2 b b1 D E e L N aaa bbb DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX .020 .023 .026 0.50 0.58 0.65 0.00 .001 .002 0.00 0.03 0.05 (.005) (0.13) .006 .008 .010 0.15 0.20 0.25 .014 .016 .018 0.35 0.40 0.45 .094 .098 .102 2.40 2.50 2.60 .035 .039 .043 0.90 1.00 1.10 0.50 BSC .020 BSC .012 .015 .017 0.30 0.38 0.425 8 8 .003 0.08 .004 0.10 C A B 2 LxN 2X R0.075 7 PLACES N bxN e bbb D/2 C A B NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). Land Pattern - SLP2510P8 P1 P DIMENSIONS DIM C G P P1 X X1 Y Y1 Z Y Z (C) (Y1) G X X1 INCHES (.034) .008 .020 .039 .008 .016 .027 (.061) .061 MILLIMETERS (0.875) 0.20 0.50 1.00 0.20 0.40 0.675 (1.55) 1.55 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. © 2010 Semtech Corp. 12 www.semtech.com RClamp0522PA RClamp0524PA PRELIMINARY PROTECTION PRODUCTS Marking Codes RClamp0522PA RClamp0524PA 0522P PIN 1 INDICATOR 0524P PIN 1 INDICATOR YYWW YYWW YYWW = Date Code Tape and Reel Specification Pin 1 Location User Direction of feed Device Orientation in Tape Part Number A0 B0 K0 RClamp0522PA 1.30 +/-0.05 mm 1.75 +/-0.05 mm 0.70 +/-0.05 mm RClamp0524PA 1.23 +/-0.05 mm 2.70 +/-0.05 mm 0.70 +/-0.05 mm Tape Width B, (Max) D 8 mm 4.2 mm 1.5 + 0.1 mm - 0.0 mm ) D1 E 0.5 mm ±0.05 1.750±.10 mm F K (MAX) P P0 P2 T(MAX) 3.5±0.05 mm 2.4 mm 4.0±0.1 mm 4.0±0.1 mm 2.0±0.05 mm 0.4 mm W 8.0 mm + 0.3 mm - 0.1 mm Contact Information Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 © 2010 Semtech Corp. 13 www.semtech.com